Furnace-feeding apparatus.



F. H. TREAT. FURNAGE FEBDING APPARATUS. APPLIOATION FILED 11111.12, 1909.-

Patented Jan. 16, 1912.

2 SHEETS-S-HEET 1.

INVENTOFI P. H. TREAT.

FURNAGE FBBDING APPARATUS.

APPLICATION FILED APRJZ, 1909.

Patented Jan. 16, 1912.

2 SHEETS-SHEET 2.

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UNTTED sTATEs PATENT oFFrcE.

FRANCIS H. TREAT, OF CLEVELAND, OHIO.

FURNAOE-FEEDING APPARATUS.

Specification of Letters Patent.

Patented Jan. 16, 1912.

Application led April 12, 1909. Serial No. 489,362.

Figures 1 land 2 are sectional views taken.

at right angles to each other showing one embodiment of my invention; and Figs. 3 and 4 are sectional views at right angles to each other showing a modified form of the apparatus.

My invention has relation to furnace feeding apparatus, and is designed to provide a simple and effective apparatus of this character, which, although applicable to other furnaces, is of particular advantage for use in feeding gas producer furnaces; a further object being to provide apparatus of this character by means of which the successive charges to the furnace can be measured and the-amount of fuel fed at each charge can be varied as may be desired.

The nature of my invention will be best understood by reference to the drawings, in which I have shown one embodiment thereof, which will now be described, it being premised, however, that various changes may be made in the details of construction and arrangement of the parts without departing from the spirit and scope of the invention as dened in the appended claims.

In these drawings, the numeral 2 designates the feed hopper of the furnace, the discharge of which at its lower end is controlled by any suitable means, preferably by a bell 3 actuated by the rods 4.

5 designates a fuel supply pipe, which is movably supported at its upper end in any suitable manner, not shown, and whose lower end portion is connected to a slide 6, which is arranged to reciprocate transversely across the upper end of the hopper upon the top plate 7 This slide has therethrough a feed opening 8, corresponding to the inner diameter of the pipe 5, and the top plate 7 has a similar registering opening 8. Screwed or otherwise secured within this opening is a depending discharge pipe 9 around which are placed the concentric telescoping sections 10 and 11. The section 10 is secured at its upperend to a ring or frame 12, which is arranged to slide vertically on the guide rods or bolts 13. The outer telescoping section 11 is provided with lugs or projections 14, to which are connected the vertically extending operating rods 15, whose upper ends are connected to the levers 16. These llevers are vpivoted to links 17, as shown in Fig. 2. The two levers 16 are connected'by a rod 18,'to which is attached theupper end of a link 19. The lower end of this link 19 is connected to the sh ort arm of a lever 20, fulcrumed at 21, and having a counterweight 22. The lever 20 is arranged to move over a segment plate 23, provided with a series of holes 24, the lever 20 having a corresponding hole through which a pin may be inserted through one of the holes in the segment plate, so as to hold the lever in the desired position.

As shown in the drawing, the sections 10 and 11 are in their raised or contracted positions, so that the maximum amount of fuel will be delivered into the hopper 2 at each opera-tion of the supply pipe 5- and slide 6. By raising the long arm of the lever 20, the link 19 will be pulled downwardly, thereby pushing down on the rods 15. This will move the outer telescoping section 11 downwardly, and as the upper end of this section has been supporting the section l0 by itsengagement with the frame or ring 12, the section 10 will also move downwardly a corresponding distance. This adjustment- Will of course contract the space between vthe lower end of the outer section 11 and the up.- per surface of the bell 3 and thus yprovide for the reception within the hopper of smaller charge. The dotted lines in Figs. 1 and 2 show the extreme expansionlof the sections 10 and 11, in which positions a minimum amount of fuel would be charged to the furnace at each operation of theV bell,

being the amount contained within said sections and the fixed section 9. j

The slide 6 may be operated by connection with any suitable mechanism forming no part of the present invention, and therefore not shown in the drawings. The bell Y3 may also be raised and lowered by any suitable means known in the art.

In the modification shown in Figs. 3 and 4, the, fuel supply pipe` 5a instead of being a swinging pipe, is relatively fixed, and the cut-ofl'l is eEected by means of the* oppositely acting slides 25 and 25a, which are arranged to reciprocate through the upper portion of the hopper 2a a short distance below the end of the pipe 5a. These slides driven in any Ysuitable manner.

25 and 25# inay be operated by any suitable 'mechanism- I have shown them as con- .tion 10a. `This telescoping section is shown as provided with a projection 29, to which is secured a lifting rod 30, whose upper end carries a nut 31 engaged by an actuating screw 32, adapted to vbe ma nipulated by hand, and by means of which the section 10a can be raised and lowered'as may be desired. 33 designates the bell, which closes the lowei end of the hopper 2a, and which may be actuated as shown in Figs. 1 and 2, or bymeans of the actuating lever 34. `The advantages of my invention result from the provision of the telescoping feed sections within the hopper, so that a measured feed of fuel may be delivered to the furnace at each operation of the bell, and whereby the amount of fuel may be closely varied at each charge as may be desired. I do not, however, limit myself'to the details of construction and arrangement which I have herein shown and described, as it is obvious that the telescoping sections may be arranged and operated in various Ways, and that other details of construction and arrangement may be varied. `I claim Y l. In feeding apparatus for furnaces, a hopper, a feed pipe extending downwardly Y' linto the hopper to discharge therein, aplur'ality of telescoping pipe sections surroundy ing the depending portion of said pipe, and

actuating connections for effecting succes-L sively a downward telescoping movement of the said sections; substantially as described.

2. In feeding apparatus for furnaces, a hopper, and a pipe arranged to be discharged within the hopper, said pipe having a plurality of telescoping discharge sections; -substantially as described.

3. In fuel feeding'apparatus for furnaces, a hopper having a feed opening in its 'upper portion, a pipe extending downwardly into the hopper'below the said opening, a feed pipe above the said opening and arranged v to be ymoved laterally into and out of register therewith, an open end pipe section telescopically mounted upon the lower end of the first named pipe, together with actuating connections for effecting a vertical movement thereof; substantially as described.

it. VIn furnace feeding apparatus, a hopper having a feed opening at its upper portion, a fixed discharge pipe rextending down'-V wardly into the hopper below the said open-V Y mounted on the said pipe, Aactuating connections for effecting a successive telescopic movement of the said sections, and means for securing the sections in dierent adjustments,substantially as described. v Y

5. In fueljfeeding apparatus for furnaces, a hopper having a feed opening at its upper end, Aa fixed `pipe section extending downwardly into the hopper belowsaid opening,

a pluralityrof telescopic sections mounted on the depending portion of said pipe, guiding means for said sections, and link and lever actuating connections for moving the section; substantially as described. A

6.V In fuel feeding apparatus for furnaces, a hopper having a feed opening at its upper end, a fixed pipesection Yextending downwardly into the hopper belowY said opening, and a pipe section telescopicallyV engaging the fixed pipe section, means for moving the telescopic section vertically to vary the distance between its lower end-and the bottom of .the hopper, and means for fixedly secu-ring said sect-ion in different adjustments togetherV with means for intermittently cutting off the feed of fuel into said pipes; substantially as described.

7. In fuel feeding apparatus Vfor furnaces, a hopper having a feed vopening at its upper end, a fixed pipe section extending downwardly into thehopper below said opening, and a pipe section telescopically 'engaging the fixed pipe section, means for moving the telescopic section vertically to vary the distance between its lower end and the bottom of thehopper, andYY means for fixedly securing said section in different ad-v justments, together with means for inter.- mittentlyvcutting off the supply of fuel to t-he feed opening to permit of the delivery` of a definite quantity'of fuel into said pipe sections; substantially as described.

. In testimony whereof, Ihave hereunto P. J. WARDNER, Lrzzin MAXWELL.L

Washington, D. C.

ing, a plurality of telescoping pipe sections' soV Gpwiesfof'thisiiatent Vmay be obtained for ve cents each, by addressing the commissioner of Patents. 

